> I have found some information in the mailing list regarding usage of local > bus ram for FCC BD's and buffers. However I haven't found any > conclusion if > it's working.
Yes, you can use local RAM for the BD's and buffers. There is a penalty because you need to move the buffers between local and 60X RAM. I have found information on the list indicating that you can use IDMA for this purpose. (search with the keyword "profiling" in embedded) > Has anyone done it successfully? > What kind of support does linux provide regarding local bus ram? (Ram > drive,...) No real support for local RAM per say. You need to treat it as any other memory mapped device. Therefore you need to change all _va()/_pa() calls to ioremap() and iopa(). Note: If you are using rev-A 8260 processors, this helps a lot. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
